Mechanism for operating churns



(No Model.)

J. T. WRIGHT. MEGEANISM FOR OPERATING (mums;

PatentdApr. 22, 1890.

4 UNITED STATES PATENT OFFICE.

JOHN THOMAS WRIGHT, OF BIGBYVILLE, TENNESSEE.

MECHANISM FOR OPERATING CHURNS.

SPECIFICATION forming part of Lettersflatent No. 426,353, dated April22, 1890.

Application filed December 31 1889. Serial No. 335,514. (No model.)

' citizen of the United States, residing at Bigbyville, in the county ofMaury and State of Tennessee, have invented a new and useful Mechanismfor Operating Ohurns,'of which the following is a specification.

My invention relates to improvements in churn-powers; and it consists ofcertain specific constructions of the frame-work, as well as a peculiarmeans for adjusting the dashershaft upon and removably connecting itwith the vertically-reciprocating power-rod, all as will be hereinaftermore fully described.

In the drawings, Figure 1 is a side elevation of my improved device.Fig. 2 is a front elevation of the same. Fig. 3 is a section on the line3 3 of Fig. 2. Fig. 4 is an enlarged section on the line 4 4 of Fig. 1.Fig. 5 is a detail view of the slotted guide.

The frame-Work which carries the mechanism for actuating thechurn-dasher consists of a flat base B, resting upon the floor, and uponwhich the churn-body is to be placed and by its weight to steady theentire device and prevent it from tilting or falling over. From thisbase rises an upright U from four to six feet in length, which issecured at right angles to the base in any desired manner, and whichcarries horizontally-projecting brackets K-one at its upper end and oneat about its mid-length-both of which project out over the base B, andare provided near their outer edges with holes k.

The driving mechanism for imparting a reciprocatory motion to thechurn-dasher, and which forms no part of my invention, consists of aheavy balance-wheel W, mounted upon the short shaft S, journaled inhorizontal bearings to the upright U between the brackets K, a smallgear-wheel 9 upon the rear end of the shaft, a larger gearing wheel G,journaled in the upright so as to mesh with the smaller gear, ahand-crank Q, secured to the outer face of this larger gearwheel, and acranked pitman-rod P, one end of which engages one of a series of radialopenings 0 in one of the spokes of the balancewheel W, but may beadjusted to any one of the other holes at a greater or less distancefrom the axle of said wheel, in order to give a greater or less throw tothe free end of v the pitman-rod P, all as will be clearly understood bypersons skilled in the art without more explicit description.

The letter R represents a power-rod, so called, which is free toreciprocate vertically lthrough the holes is in the brackets K, and

this rod has a journal 0' at a proper point, in which the free end ofthe pitman-rod P is pivoted, whereby when the crank-arm Q is turned arapid reciprocation vertically is imparted to the powerrod R. Heretoforethis powerrod has been continued downwardly and provided with dashersnear its lower end, and was therefore adapted to act as a dasher-rod fora churn; but in such cases when it was desired to remove the body of thechurn (which of course surrounded the dasher-shaft) the rod hadnecessarily to be disconnect-ed from the pitman-rod and from one or bothof its bearings 713, in order to allowits lower end sufficient lateralmovement to withdraw the churn-body therefrom without spilling thecream.

In the present invention I provide blocks L, preferably cut away ontheir rear faces Z, adapted to fit the power-rod, and these blocks maybe replaced by others of larger dimension, as hereinafter described. Aguide G is also provided, having alongitudinal slot S and having aconcaved front face g, and these blocks L are interposed between saidguide and the power-rod R at the upper and lower ends of the guide,bolts T being passed through the three members and their heads seated incountersunk recesses in the cut-away portions 9 of the guide G.

The dasher-shaft D is of the usual construction, and in fact may be theordinary dashershaft of almost any churn now manufactured which isoperated in this manner. Through the dasher-shaft I bore one or moreordinary gimlet-holes d, and an ordinary bolt is seated in the slot S ofthe guide G, with its head i upon the rear face of the guide between thetwo blocks L, its body T, loosely engaging said slot, passing throughone of the gimlet-holes d in the dasher-shaft D, and carrying a hand nutT on its free outer end. It will be understood that the bolt T can beengaged with any one of several gimlet-holes with which the dasher-shaftmay be provided, and also that by loosening the hand-nut T a further andmore accurate adjustment between the guide and flasher-shaft can he madeto the extent of the slot S. It will also be understood that when thebody of the churn is of a considerable diameter (much larger than iscustomary, however) the blocks L can be replaced by others much thicker,which will throw the guide G considerably farther from the upright U,and will therefore permit the large-sized churn-body to rest upon thebase B and still allow the dasher-shaft to pass down its axial line.

From the above description it will be seen that the weight of thechurn-body and its contents rigidly maintains the upright position of myimproved churn-power; that by the use of the blocks L the device can beused in connection with churns having bodies of exceptionally-largediameter; that the device can be connected with the dasher-shaft of anyordinary churn by simply boring a gimlethole in such shaft, and thatwhen so connected the shaft may be disconnected therefrom, or may bevertically adjusted in the guide G thereof by simply working thehand-nut T Especial stress is laid upon the verticallyreciprocatingpower-rod, which is guided in holes near the outer edges of the bracketK, and to which the pitman P is connected, as the size of and bearingsfor this power-rod are especially constructed with a view to theirgreatest adaptability to this machine, and said power-rod is neverremoved from said bearings nor disconnected from said pitman,

as is necessary where the dasher-shaft is con nected directly to thepitman without the intervention of any power-shaft.

Having thus described my invention, I claim 1. The combination, with theframe-work, a vertically-reciprocating power-rod R therein, and avertically-slotted guide G, having a concaved face g, carried by saidpower-rod, of the shaft D, the bolt T, its body engaging said slot and ahole in the shaft and its head If on the rear face of said guide, and ahand-nut T .on the forward screw-threaded end of said bolt, as setforth.

2. The base B, the upright U, supp0rted thereby, and theforwardly-projecting brackets K n' hole k k n a thei fr nt edges, in omnat on with the ve t a ly-r p o a ng p ro R, t sha t D, the u de G hav non av fa 9, o whi h i Sh f is a justably nn cted, he b cks L, v ngconcave ea ace I, ns rt d b tween Said p wer-rod and t rear fa f d de asu po t n sa d uid y n e ne f t e fro t ges o sa d bra k ts, nd bolts T,pas ng thr u h sa d rod, blo ks, an gu and th ir heads o nte sun n 'n af e 9 the l tt r, as and or the purpose set forth.

In es mo y t at I laim the foregoing a my wn I av he to a fi ed mysiat-u e in presence of two witnesses.

' JOHN HQM S WRIGHT- Witnesses:

W. J. DALE, Sr, s. T. BROWN.

